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The purpose of this study is to investigate the appropriate window setting of chest computed tomography to select a correct size of double-lumen endobronchial tube.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Width 1000 HU/Level -450 HU | Experimental |
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| Width 400 HU/Level 25 HU | Active Comparator |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Width 1000 HU/Level -450 HU | Device | Double-lumen tube size is selected according to the internal diameter of the left mainstem bronchus measured in the chest computed tomography with width 1000 HU and level -450 HU. |
| Measure | Description | Time Frame |
|---|---|---|
| Air-leak at deflation of bronchial cuff | An expected average of 10 min after double lumen tube intubation | |
| Air-tight seal below resting volume of bronchial cuff | An expected average of 10 min after double lumen tube intubation |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Seoul National University Hospital | Seoul | South Korea |
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| Width 400 HU/Level 25 HU | Device | Double-lumen tube size is selected according to the internal diameter of the left mainstem bronchus measured in the chest computed tomography with width 400 HU and level 25 HU. |
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